But reusing and heating it too often - as is often the case in Honduras, where there is a huge black market for used cooking oil - can create compounds which are bad for consumers' health.
A spokesperson for the food safety body in the Netherlands (NVWA) said some had reported "dizziness" after eating the sweets. The agency toldthat "samples were taken and cannabis was found in them".
A Haribo spokesperson told the BBC it was working with police to "establish the facts around the contamination".NVWA said three packs were found to be contaminated, but Haribo is recalling its entire stock as a precaution.The bags in question have a best-before date of January 2026.
It is not clear how many people have become unwell.NVWA said police were investigating how cannabis ended up in the sweets, Dutch media report.
The agency said there were bags in circulation that "can lead to health complaints, such as dizziness, when consumed".
"Do not eat the sweets," the statement added.Those outside the UK can
The prime minister has made tackling illegal immigration and "restoring order" to the asylum system a priority for the government.Sir Keir Starmer has promised to "smash the gangs". It follows predecessor Rishi Sunak's pledge to "stop the boats".
Yet small boat crossings have reached record levels for this point in the year - with nearly 1,200 migrants arriving this way on 31 May.BBC Verify looks at key government pledges - from ending the use of asylum hotels to returning more failed asylum seekers.